{"product_id":"sea-dog-304-ss-fixed-flange-antenna-base-4-5-in","title":"Sea-Dog 304 SS Fixed Flange Antenna Base – 4-1\/2\" | SED-329515-1","description":"\u003ch2\u003eSea-Dog 304 SS Fixed Flange Antenna Base – 4-1\/2\"\u003c\/h2\u003e\u003cp\u003eGet your VHF, AIS, or GPS antenna up and away from deck clutter with this 4-1\/2\" fixed flange antenna base from Sea-Dog. Formed from 304 stainless steel with a built-in wire feed-through channel, it delivers a clean, permanent deck or cabin top installation — routing your coax cable directly through the base so there's no exposed cable run on the mounting surface.\u003c\/p\u003e\u003cp\u003eThe extra height compared to a low-profile base gives the antenna a head start above deck hardware, cleats, and rails without needing a separate extension. The flat flange bolts securely to any horizontal surface, and the standard 1\"-14 thread accepts the vast majority of marine antennas.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormed 304 stainless steel – corrosion-resistant for coastal and inshore use\u003c\/li\u003e\n\u003cli\u003e4-1\/2\" height – raises antenna above deck hardware without a separate extension\u003c\/li\u003e\n\u003cli\u003eBuilt-in wire feed-through – routes coax directly through the base\u003c\/li\u003e\n\u003cli\u003eStandard 1\"-14 thread – fits most marine antennas\u003c\/li\u003e\n\u003cli\u003eFlat flange design for deck, cabin top, or horizontal surface mounting\u003c\/li\u003e\n\u003cli\u003eMPN: 329515-1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e This is the right base when you want a clean deck installation with hidden coax routing and enough built-in height to clear low deck hardware — cleats, hatches, or toe rails — without adding a separate extension. It's a popular choice on sailboats and trawlers where the antenna needs to sit above deck-level obstructions but a full extension would be excessive. If you only need minimal height above the mounting surface, see the shorter \u003ca href=\"\/products\/sea-dog-304-ss-fixed-flange-antenna-base-1-5-in\"\u003eSea-Dog 304 SS Fixed Flange Antenna Base – 1-1\/2\"\u003c\/a\u003e. To raise the antenna even further, pair this base with a \u003ca href=\"\/products\/sea-dog-316-ss-antenna-mount-extension-12-in-329532\"\u003eSea-Dog 316 SS Antenna Mount Extension – 12\"\u003c\/a\u003e or the \u003ca href=\"\/products\/sea-dog-316-ss-antenna-mount-extension-24-in\"\u003eSea-Dog 316 SS Antenna Mount Extension – 24\"\u003c\/a\u003e. For rail or arch mounting without deck penetration, see the \u003ca href=\"\/products\/sea-dog-316-ss-tube-mount-antenna-base-1-in-od\"\u003eSea-Dog 316 SS Tube Mount Antenna Base\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaterial Note:\u003c\/strong\u003e This base is formed 304 stainless steel, well suited for coastal and inshore environments. For offshore or heavy saltwater exposure, consider the 316 SS options in the Sea-Dog antenna base range.\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43943888814116,"sku":"SED-329515-1","price":36.58,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/a1488211-9916-46f2-b385-176aaa31d189.png?v=1784165819","url":"https:\/\/marisolmarine.com\/products\/sea-dog-304-ss-fixed-flange-antenna-base-4-5-in","provider":"Marisol Marine Company","version":"1.0","type":"link"}